Home / 761,906.60-1,143,019.74-288,581.48

Finding the Fourth Proportional to 761,906.60, 1,143,019.74 and 288,581.48

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Solution

The fourth proportional to 761,906.60, 1,143,019.74 and 288,581.48 is: 432,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,906.60 : 1,143,019.74 = 288,581.48 : x
  2. Step 2: Convert to fraction form
    761,906.60/1,143,019.74 = 288,581.48/x
  3. Step 3: Cross multiply
    761,906.60x = 1,143,019.74 × 288,581.48
  4. Step 4: Simplify right side
    761,906.60x = 329,854,328,238.42
  5. Step 5: Solve for x
    x = 329,854,328,238.42/761,906.60
  6. Step 6: Final answer
    x = 432,932.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.